Medicare Advantage in Johnson County, Kentucky
3,919 people in Johnson County, Kentucky were enrolled in Medicare Advantage in October 2026, 65.9% of 5,951 eligible beneficiaries (+1.4 pts since October 2025). Humana Inc. is the largest parent organization with 45% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,719 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 356 members here are in plans that terminate or leave the county. MA plans offered go from 37 to 35.
Parent organizations in Johnson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,753 | +249 | 45.1% |
| UnitedHealth Group, Inc. | 652 | −371 | 16.8% |
| CVS Health Corporation | 459 | +431 | 11.8% |
| Centene Corporation | 448 | +17 | 11.5% |
| Elevance Health, Inc. | 439 | −321 | 11.3% |
| Devoted Health, Inc. | 77 | new | 2.0% |
| UMWA Health and Retirement Funds | 49 | −4 | 1.3% |
| One Senior Care, Inc. | 11 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 677 beneficiaries in Johnson County were assigned to 18 Medicare Shared Savings Program ACOs, 41.5% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.